Questions

What occurs if at least one of the five conditions of Hardy-Weinberg equilibrium are not met?

What occurs if at least one of the five conditions of Hardy-Weinberg equilibrium are not met?

Do allele and genotype frequencies often change overtime in real populations? Five conditions of Hardy Weinberg equilibrium that cause changes to occur if at least one is not met. If inbreeding happens, random mixing of gametes does not occur, and genotype frequencies change. 3.

Why does a population deviate from Hardy-Weinberg equilibrium?

In a small population, the sampling of gametes and fertilization to create zygotes causes random error in allele frequencies. This results in a deviation from the Hardy-Weinberg Equilibrium. This deviation is larger at small sample sizes and smaller at large sample sizes.

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What is one condition that must be met for a population to be in genetic equilibrium?

The Hardy-Weinberg model states that a population will remain at genetic equilibrium as long as five conditions are met: (1) No change in the DNA sequence, (2) No migration, (3) A very large population size, (4) Random mating, and (5) No natural selection.

Which of the following is not a necessary condition of Hardy-Weinberg equilibrium?

Explanation: Hardy-Weinberg equilibrium has a set of conditions that must be met in order for the population to have unchanging gene pool frequencies. There must be random mating, no mutation, no migration, no natural selection, and a large sample size. It is not necessary for the population to be at carrying capacity.

Which of the following is most likely reason that the population deviated from Hardy-Weinberg expectations during the study period?

Which of the following is the most likely reason that the population deviated from Hardy-Weinberg expectations during the study period? Natural selection is occurring in the population. In a population of pea plants, a certain gene has two alleles: a dominant allele (HHH), and a recessive allele (hhh).

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Why does non random mating not change allele frequencies?

That is an interesting result: non-random mating, even in the most extreme form of self- fertilization, has no effect on allele frequency. Selfing causes genotype frequencies to change as the frequency of homozygotes increases and the frequency of heterozygotes decreases, but the allele frequency remains constant.

When a population is in Hardy-Weinberg equilibrium what is not happening to the species quizlet?

-A population in Hardy-Weinburg equilibrium is not changing genetically, not evolving. -Comparing gene frequencies in two succeeding generations can show if evolution is occurring(it is occurring if the frequencies change) and can determine which direction and rate of evolution.

How do you know if a population is in Hardy-Weinberg equilibrium?

To know if a population is in Hardy-Weinberg Equilibrium scientists have to observe at least two generations. If the allele frequencies are the same for both generations then the population is in Hardy-Weinberg Equilibrium.

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Why does the population not continue to grow exponentially?

In the real world, with its limited resources, exponential growth cannot continue indefinitely. Exponential growth may occur in environments where there are few individuals and plentiful resources, but when the number of individuals becomes large enough, resources will be depleted, slowing the growth rate.

What does being in Hardy-Weinberg equilibrium mean for a population quizlet?

Hardy-Weinberg equilibrium: the condition in which both allele and genotype frequencies in a population remain constant from generation to generation unless specific disturbances occur.